English verb conjugation
MUST PROSPER

Regular verb: prosper - prospered - prospered

Affirmation

Simple form	V-ing form
I must prosper you must prosper he must prosper we must prosper you must prosper they must prosper	I must be prospering you must be prospering he must be prospering we must be prospering you must be prospering they must be prospering
Perfect	V-ing perfect
I must have prospered you must have prospered he must have prospered we must have prospered you must have prospered they must have prospered	I must have been prospering you must have been prospering he must have been prospering we must have been prospering you must have been prospering they must have been prospering

Negation

Simple form	V-ing form
I mustn't prosper you mustn't prosper he mustn't prosper we mustn't prosper you mustn't prosper they mustn't prosper	I mustn't be prospering you mustn't be prospering he mustn't be prospering we mustn't be prospering you mustn't be prospering they mustn't be prospering
Perfect	V-ing perfect
I mustn't have prospered you mustn't have prospered he mustn't have prospered we mustn't have prospered you mustn't have prospered they mustn't have prospered	I mustn't have been prospering you mustn't have been prospering he mustn't have been prospering we mustn't have been prospering you mustn't have been prospering they mustn't have been prospering

Interrogative form

Simple form	V-ing form
must I prosper? must you prosper? must he prosper? must we prosper? must you prosper? must they prosper?	must I be prospering? must you be prospering? must he be prospering? must we be prospering? must you be prospering? must they be prospering?
Perfect	V-ing perfect
must I have prospered? must you have prospered? must he have prospered? must we have prospered? must you have prospered? must they have prospered?	must I have been prospering? must you have been prospering? must he have been prospering? must we have been prospering? must you have been prospering? must they have been prospering?

Interro-negative form

Simple form	V-ing form
mustn't I prosper? mustn't you prosper? mustn't he prosper? mustn't we prosper? mustn't you prosper? mustn't they prosper?	mustn't I be prospering? mustn't you be prospering? mustn't he be prospering? mustn't we be prospering? mustn't you be prospering? mustn't they be prospering?
Perfect	V-ing perfect
mustn't I have prospered? mustn't you have prospered? mustn't he have prospered? mustn't we have prospered? mustn't you have prospered? mustn't they have prospered?	mustn't I have been prospering? mustn't you have been prospering? mustn't he have been prospering? mustn't we have been prospering? mustn't you have been prospering? mustn't they have been prospering?